obverses

/AH0 B V ER1 S AH0 Z/
noun
  1. 1

    The heads side of a coin, or the side of a medal or badge that has the principal design.

    โ€œThe medal had a cross on the obverse and had a name inscribed on the reverse.โ€

  2. 2

    A proposition obtained by obversion, e.g. All men are mortal => No man is immortal.

Antonyms

Source: https://en.wiktionary.org/wiki/obverse, https://en.wiktionary.org/wiki/obverses